Lampshade and lamp base



FIG. 1 is a front elevation view of a lampshade and lamp base showing my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a bottom perspective view thereof; and,

FIG. 4 is a top perspective view thereof.

The features shown in broken lines form no part of the claimed design.

Back and side views of the lamp according to my new design are identical with the view shown in FIG. 1. 

The ornamental design for a lampshade and lamp base, as shown and described. 